Missing texture after add new actors

I want to add two types of characters multiple times but when I add a new actor to stage texture in "old" actors stops render.

I can add multiple KnightActor (without RatActor) or multiple RatActor (without KnightActor). When I try to add multiple KnightActor and RatActor on one stage only textures from newest actors are rendered (one RatActor and one KnightActor)